This might be a Penis Stimulator you have to try. It has full automatic pulse training and inside is an intelligent chip.  It will fit most cock sizes and has 10 powerful modes for an intense stimulating effect. With this hot item, you won't go wrong. With this, you can train the penis strength for harder longer lasting erections.

Function: 10 Frequency Vibration

Color: Black

Size: 18 * 9.4 cm/7.0  * 3.7 inch

Net Weight: 220 g/0.48 lb/7.7 oz

Power: Lithium battery

Material: ABS + Silicone

Package: Color Box

Further: Waterproof/Double Motor

Package Size: 8.5＊8.5＊20 CM